EP3565968B1 - Verfahren und abdeckung zur abdeckung einer öffnung in einem bauteil einer windturbine - Google Patents

Verfahren und abdeckung zur abdeckung einer öffnung in einem bauteil einer windturbine Download PDF

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Publication number
EP3565968B1
EP3565968B1 EP17823038.9A EP17823038A EP3565968B1 EP 3565968 B1 EP3565968 B1 EP 3565968B1 EP 17823038 A EP17823038 A EP 17823038A EP 3565968 B1 EP3565968 B1 EP 3565968B1
Authority
EP
European Patent Office
Prior art keywords
cover
torus
component
opening
tarpaulin
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP17823038.9A
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English (en)
French (fr)
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EP3565968A1 (de
Inventor
Asp Ravn DIGET
Anders Hoejris JENSEN
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens Gamesa Renewable Energy AS
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Siemens Gamesa Renewable Energy AS
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Publication of EP3565968A1 publication Critical patent/EP3565968A1/de
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Active legal-status Critical Current
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
    • F03D13/10—Assembly of wind motors; Arrangements for erecting wind motors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
    • F03D13/40—Arrangements or methods specially adapted for transporting wind motor components
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction

Definitions

  • the present invention relates to a method for temporarily covering an opening in a component of a wind turbine. It also relates to a cover and a cover arrangement.
  • a simple approach to cover an opening is to place a tarpaulin over it. If the component should be moved while the cover is attached, the tarpaulin needs to be fixed to the component. This can be problematic, since the outside of wind turbine components is often hard to reach once a partial assembly of the wind turbine is achieved.
  • the object of the present invention is therefore to provide an improved way to cover openings in wind turbine components during the construction of the wind turbine.
  • an inflatable torus as a carrying and support member for the tarpaulin.
  • the torus that can be also considered to be a ring
  • the torus is inflated, it pushes against the outer circumference of the wall and therefore "grips" the outer circumference of the opening. If the outer circumference of the wall is essentially flat, a frictional connection between the outer circumference of the wall and the torus is achieved.
  • components of a wind turbine comprise flanges that are arranged around openings to connect the component to other components of the wind turbine.
  • the generator can provide a flange to connected with the rotor hub.
  • the torus can engage the flange during the inflation and there will therefore be a form fit between the outer circumference of the wall, especially the flange, and the torus.
  • a reliable connection of the tarpaulin with the wall and therefore with the component can be achieved by simply inflating the torus.
  • the cover can comprise a valve for inflating the torus, wherein the cover is positioned in such a way that the valve is positioned on the side of the tarpaulin that is facing the opening.
  • the valve is arranged within the space that is surrounded by the component and the tarpaulin once the cover is attached.
  • the valve is therefore accessible from the inside of the component.
  • wind turbines are constructed such that the components are accessible with relative ease from the inside but hard to access from the outside. By placing the valve towards the opening and therefore towards the inside of the component the valve can be easily accessed by a workman during the construction of the wind turbine. It is therefore possible to deflate the torus and therefore disconnect the cover from the component from the inside of the component. After the torus is at least partially deflated the cover becomes flexible and can e. g. be pulled inside the component to remove it.
  • the valve can be spaced apart from the torus when the torus is inflated and it can be connected to the torus with at least one inflatable air channel. Especially at least one pair of air channels can be used that from a support rod for the cover when inflated.
  • At least one handle can be attached to the tarpaulin, wherein the cover is positioned in such a way that the handle is positioned on the side of the tarpaulin that is facing the opening. This facilitates the removal of the cover from inside the component. To remove the cover the cover can be pulled inside the component by pulling the handle or handles, especially after the torus is deflated.
  • the component can be a generator, especially a direct drive generator, a tower section, a wind turbine blade, a nacelle or a hub.
  • the method can include a step of demounting the cover from the component, wherein the demounting includes deflating the torus.
  • the demounting includes deflating the torus.
  • the cover can be pulled inside the component through the opening after deflating the torus. Especially the previously discussed handles can be used to pull the cover through the opening. Since the torus is deflated, the component is flexible and can e. g. be folded to be pulled inside the opening.
  • the cover can be demounted from the component after the component is mounted to at least one further component of the wind turbine. It can especially be dismounted after the component is arranged at its final position during the assembly of the wind turbine. In such a final position it is often hard to reach the opening of the component from the outside, since the opening can be placed at large hights. It is however often possible to reach the opening from the inside and remove the cover from the inside as discussed above.
  • the invention concerns a cover for covering an opening in a component of a wind turbine, comprising a tarpaulin and an inflatable torus, wherein a circumference of the tarpaulin is attached to the torus such that the tarpaulin extends across the hole of the torus when the torus is inflated.
  • a cover for covering an opening in a component of a wind turbine comprising a tarpaulin and an inflatable torus, wherein a circumference of the tarpaulin is attached to the torus such that the tarpaulin extends across the hole of the torus when the torus is inflated.
  • the cover can comprise a valve for inflating the torus that is spaced apart from the torus when the torus is inflated and connected to the torus via at least one inflatable air channel.
  • the valve can especially be located near the centre of the hole once the torus is inflated. If the cover is attached in such a way that the valve is positioned on the side of the tarpaulin facing the opening of the component the valve can therefore be positioned roughly in the middle of the opening and is therefore easily accessible by a workman to inflate or deflate the torus and the air channel.
  • the valve can be connected to the torus via at least one pair of the inflatable air channels, wherein the pair of air channels forms a support rod extending across the hole of the torus when the torus and the air channels are inflated.
  • Preferably two support rods can be used that extend roughly orthogonal to each other. If multiple support rods are used they can preferentially cross approximately at the centre of the hole of the torus and/or at the position of the valve. If multiple support rods are used they can be arranged in such a way that the circular hole of the torus is subdivided into roughly equal segments of the circle by the support rods.
  • the cover can comprise at least one handle that is attached to the tarpaulin.
  • the handle can be lashed to the tarpaulin.
  • the handle can preferably be arranged on the same side of the tarpaulin as the valve, especially on the side which is orientated towards the opening of the component.
  • the component can be a generator, especially a direct drive generator, a tower section, a wind turbine blade, a nacelle or a hub.
  • the invention concerns a cover arrangement, comprising a component of a wind turbine and a cover according to the present invention that is attached to the component.
  • the cover arrangement can be produced by the method according to the resent invention.
  • the cover arrangement can use a cover comprising at least one handle and/or a valve for inflating the torus and/or one or more air channels connecting the valve to the torus, wherein these components are preferably arranged on the side of the tarpaulin that is facing the opening of the component.
  • Fig. 1 shows a cover 1 for covering an opening in a component of a wind turbine.
  • the cover 1 comprises an inflatable torus 3 and a tarpaulin 2 that is attached to the torus 3 via its circumference.
  • the torus 3 is connected to a valve 4 via inflatable air channels 5.
  • the air channels 5 therefore provide additional stability for the cover 1.
  • handles 7 are attached to the tarpaulin 2. They can be attached to the tarpaulin 2 by e. g. lashing the handles to the tarpaulin at two points each.
  • FIGs 2 and 3 show different views of a cover arrangement 13, in which a cover 1 is used to cover an opening 8 of a component 14 of a wind turbine.
  • the component 14 can e. g. be a generator, especially a direct drive generator, a tower section, a wind turbine blade, a nacelle or a hub. Only the section of the component 14 next to the opening 8 is shown in figures 2 and 3 .
  • a slightly simplified version of the cover 1 is shown in figures 2 and 3 .
  • the cover 1 comprises only one pair of air channels 5, forming a single support rod 6. Only two handles 7 are shown.
  • the cover 1 can be easily attached to the component 14 to form the cover arrangement 15 as shown in figures 2 and 3 .
  • the cover 1 is first positioned over the opening 8 such that the torus 3 extends around the outer circumference of a wall 9 whose inner circumference delimits the opening 8 and that the tarpaulin 2 extends across the opening 8. While the cover 1 is positioned, the torus 3 and the air channels 5 are in a deflated state. Therefore the connected inner spaces 10, 11 of the torus 3 and the air channels 5 are shrunk down to a smaller size than the size shown in figures 2 and 3 and the cover 1 is quite flexible and can e. g. be folded.
  • the torus 3 and the air channels 5 are inflated by pumping e. g. air via the valve into the connected inner spaces 10, 11. Therefore the inner spaces 10, 11 expand and push the torus 3 against the outside of the wall 9 of the opening 8. Since the opening 8 has a flange 15 to connect further components to the opening 8, a form fit between the wall 9 and the torus 3 is formed once the torus is inflated.
  • the cover 1 should typically be removed again.
  • the component 14 is already in a position where it is quite laborious to access the component 14 from the outside.
  • the cover 1 is therefore designed in such a way, that a workman 12 can detach the cover 1 from the inside of the component 14.
  • the torus 3 can be deflated via the valve 4. Due to the deflation of the torus 3, the torus 3 can be moved over the flange 15 and the cover 1 can therefore be detached from the opening 8. Deflating the torus 3 also deflates the air channels 5 and therefore softens the support rod or support rods.
  • the full cover 1 is flexible again and can be folded to pull it inside the component 14.
  • the workman 12 can therefore pull the cover 1 inside the component 14 via the handles 7 after deflating the torus 3.
  • Fig. 4 shows a slightly different cover arrangement 13 than the cover arrangement shown in figures 2 and 3 . Only the differences between the two cover arrangements 13 will be discussed.
  • the component 14 shown in fig. 4 does not comprise outside flanges. In this case the frictional forces exerted by the torus 3 on the wall 9 of the component are sufficiently strong to keep the cover 1 in place. This can be achieved by the right choice of geometry for the torus 3.
  • the handles 7 are used as an additional measure to secure the cover 1 to the component 14. As shown schematically in fig. 4 the handles 7 are secured to elements 16 of the component 14. The handles 7 can therefore be used to attach the cover 1 to the component 14 during the inflation and/or deflation of the torus 3 and as an additional security measure to avoid a detachment of the cover 1 from the component 14.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Wind Motors (AREA)

Claims (11)

  1. Verfahren zum vorübergehenden Abdecken einer Öffnung (8) in einem Bestandteil (14) einer Windturbine, das folgende Schritte umfasst:
    - derartiges Positionieren einer Abdeckung (1), die einen aufblasbaren Ring (3) und eine Plane (2) umfasst, deren Umfang an dem Ring (3) befestigt ist, auf der Öffnung (8), dass der Ring (3) um den Außenumfang einer Wand (9) herum verläuft, deren Innenumfang die Öffnung (8) begrenzt, und dass die Plane (2) über die Öffnung (8) hinweg verläuft, und
    - Aufblasen des Rings (3) zum Befestigen der Abdeckung (1) an dem Bestandteil (14).
  2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die Abdeckung (1) ein Ventil (4) zum Aufblasen des Rings (3) umfasst, wobei die Abdeckung (1) so positioniert wird, dass das Ventil (4) auf der der Öffnung (8) zugewandten Seite der Plane (2) positioniert ist.
  3. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass mindestens ein Griff (7) an der Plane (2) angebracht ist, wobei die Abdeckung (1) so positioniert wird, dass der Griff (7) auf der der Öffnung (8) zugewandten Seite der Plane (2) positioniert ist.
  4. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass es sich bei dem Bestandteil (14) um einen Generator, einen Turmabschnitt, ein Windturbinenrotorblatt, eine Gondel oder eine Nabe handelt.
  5. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass es ein Abnehmen der Abdeckung (1) von dem Bestandteil (14) umfasst, wobei das Abnehmen das Ablassen von Luft aus dem Ring (3) umfasst.
  6. Verfahren nach Anspruch 5, wobei die Abdeckung nach dem Ablassen von Luft aus dem Ring (3) über die Öffnung (8) in den Bestandteil (14) hinein gezogen wird.
  7. Verfahren nach Anspruch 5 oder 6, dadurch gekennzeichnet, dass die Abdeckung (1) von dem Bestandteil (14) abgenommen wird, wenn der Bestandteil an mindestens einem weiteren Bestandteil der Windturbine montiert ist.
  8. Abdeckung zum Abdecken einer Öffnung (8) in einem Bestandteil (14) einer Windturbine mit einer Plane (2), dadurch gekennzeichnet, dass sie einen aufblasbaren Ring (3) umfasst, wobei ein Umfang der Plane (2) so an dem Ring (3) angebracht ist, dass die Plane (2) über das Loch des Rings (3) hinweg verläuft, wenn dieser aufgeblasen ist, wobei die Abdeckung ein Ventil (4) zum Aufblasen des Rings (3) umfasst, das in einem Abstand zu dem Ring (3) liegt, wenn dieser aufgeblasen ist, und über mindestens einen aufblasbaren Luftkanal (5) mit dem Ring (3) verbunden ist, und
    wobei das Ventil (4) über mindestens zwei der aufblasbaren Luftkanäle (5) mit dem Ring (3) verbunden ist,
    wobei die zwei Luftkanäle (5) eine Stützstrebe (6) bilden, die über das Loch des Rings (3) hinweg verläuft, wenn der Ring (3) und die Luftkanäle (5) aufgeblasen sind.
  9. Abdeckung nach Anspruch 8, dadurch gekennzeichnet, dass die Abdeckung (1) mindestens einen Griff (7) umfasst, der an der Plane (2) angebracht ist.
  10. Abdeckung nach einem der Ansprüche 8 und 9, dadurch gekennzeichnet, dass es sich bei dem Bestandteil (14) um einen Generator, einen Turmabschnitt, ein Windturbinenrotorblatt, eine Gondel oder eine Nabe handelt.
  11. Abdeckungsanordnung, die einen Bestandteil (14) einer Windturbine umfasst, dadurch gekennzeichnet, dass die Abdeckungsanordnung ferner eine Abdeckung (1) nach einem der Ansprüche 8 bis 10 umfasst, die an dem Bestandteil (14) angebracht ist und so eine Öffnung (8) des Bestandteils (14) abdeckt.
EP17823038.9A 2017-02-17 2017-11-28 Verfahren und abdeckung zur abdeckung einer öffnung in einem bauteil einer windturbine Active EP3565968B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017202581 2017-02-17
PCT/EP2017/080612 WO2018149528A1 (en) 2017-02-17 2017-11-28 Method and cover for covering an opening in a component of a wind turbine

Publications (2)

Publication Number Publication Date
EP3565968A1 EP3565968A1 (de) 2019-11-13
EP3565968B1 true EP3565968B1 (de) 2020-11-04

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EP17823038.9A Active EP3565968B1 (de) 2017-02-17 2017-11-28 Verfahren und abdeckung zur abdeckung einer öffnung in einem bauteil einer windturbine

Country Status (6)

Country Link
US (1) US10927816B2 (de)
EP (1) EP3565968B1 (de)
CN (1) CN110268157B (de)
DK (1) DK3565968T3 (de)
ES (1) ES2843736T3 (de)
WO (1) WO2018149528A1 (de)

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EP3587807A1 (de) 2018-06-25 2020-01-01 Siemens Gamesa Renewable Energy A/S Aufblasbare komponente zur wartung oder installation eines windturbinenmoduls
US12404840B2 (en) 2018-06-25 2025-09-02 Siemens Gamesa Renewable Energy A/S Inflatable component for service or installation of a wind turbine module
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US20220381227A1 (en) * 2019-11-26 2022-12-01 Vestas Wind Systems A/S Improvements relating to environmental protection covers for wind turbine structures
EP3995693A1 (de) 2020-11-10 2022-05-11 PP Energy ApS Temporäre einhausung für mindestens einen teil einer rotorschaufel
EP4015816A1 (de) * 2020-12-18 2022-06-22 Vestas Wind Systems A/S Verfahren zur montage einer dichtungsanordnung an einer öffnung einer windturbinenkomponente
EP4388190B1 (de) * 2021-08-16 2026-03-04 Vestas Wind Systems A/S Verfahren zur wartung eines windturbinenrotorblatts
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Also Published As

Publication number Publication date
DK3565968T3 (da) 2021-01-04
US20190376491A1 (en) 2019-12-12
EP3565968A1 (de) 2019-11-13
CN110268157A (zh) 2019-09-20
US10927816B2 (en) 2021-02-23
CN110268157B (zh) 2021-10-01
WO2018149528A1 (en) 2018-08-23
ES2843736T3 (es) 2021-07-20

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